The decomposition of substance X follows the rate law rate = k[X]⁰

CHEMISTRY · Single correct · CBSE · Chemistry · Chemical Kinetics · Chemical Kinetics

Problem

The decomposition of substance X follows the rate law rate = k[X]⁰. If the initial concentration of X is doubled while temperature is held constant, which of the following best describes the immediate effect on the reaction rate? (a) The rate doubles because it is directly proportional to [X][X]. (b) The rate quadruples because the reaction is second order in [X][X]. (c) The rate remains unchanged because it is independent of [X][X]. (Correct) (d) The rate becomes zero because a zero-order reaction has a rate of zero.

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